package com.ljy.jymail.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.ljy.common.constant.ProductConstant;
import com.ljy.jymail.product.dao.AttrAttrgroupRelationDao;
import com.ljy.jymail.product.dao.AttrGroupDao;
import com.ljy.jymail.product.dao.CategoryDao;
import com.ljy.jymail.product.entity.AttrAttrgroupRelationEntity;
import com.ljy.jymail.product.entity.AttrGroupEntity;
import com.ljy.jymail.product.entity.CategoryEntity;
import com.ljy.jymail.product.service.CategoryService;
import com.ljy.jymail.product.vo.AttrRespVo;
import com.ljy.jymail.product.vo.AttrVo;
import com.ljy.jymail.product.vo.attrGroupRelationVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ljy.common.utils.PageUtils;
import com.ljy.common.utils.Query;

import com.ljy.jymail.product.dao.AttrDao;
import com.ljy.jymail.product.entity.AttrEntity;
import com.ljy.jymail.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {


    @Autowired
    public AttrAttrgroupRelationDao relationDao;

    @Autowired
    public AttrGroupDao attrGroupDao;

    @Autowired
    public CategoryDao categoryDao;;

    @Autowired
    public CategoryService categoryService;



    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        //1、保存基本数据
        this.save(attrEntity);

        //2、保存关联关系
        //判断类型，如果是基本属性就设置分组id
        if (attr.getAttrType()== ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()
            && attr.getAttrGroupId()!=null
        ){
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attrEntity.getAttrId());
            relationDao.insert(relationEntity);
        }

    }



    //查询
    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId,String type) {
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().
                eq("attr_type","base".equalsIgnoreCase(type)?
                        ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
        if (catelogId!=0){
            wrapper.eq("catelog_id",catelogId);
        }

        String key = (String)params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and((query)->{
                query.eq("attr_id",key).or().like("attr_name",key);
            });
        }

        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                wrapper
        );
        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();
        List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
            AttrRespVo respVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, respVo);
            //设置分类和分组的名字
            if ("base".equalsIgnoreCase(type)) {
                AttrAttrgroupRelationEntity attr_id = relationDao.selectOne(
                        new QueryWrapper
                                <AttrAttrgroupRelationEntity>()
                                .eq("attr_id", attrEntity.getAttrId()));
                //组id
                if (attr_id != null && attr_id.getAttrGroupId()!=null) {
                    AttrGroupEntity attrGroupEntity =
                            attrGroupDao.selectById(attr_id.getAttrGroupId());
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                respVo.setCatelogName(categoryEntity.getName());
            }

            return respVo;
        }).collect(Collectors.toList());
        pageUtils.setList(respVos);
        return pageUtils;
    }


    //查询商品详细信息
    @Cacheable(value = "attr",key="'attrinfo:'+#root.args[0]")
    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrEntity attrEntity = this.getById(attrId);
        AttrRespVo attrRespVo = new AttrRespVo();
        BeanUtils.copyProperties(attrEntity, attrRespVo);

        if(attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //设置分组信息
            AttrAttrgroupRelationEntity attrgroup = relationDao.
                    selectOne(
                            new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if (attrgroup!=null){
                attrRespVo.setAttrGroupId(attrgroup.getAttrGroupId());
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroup.getAttrGroupId());
                if (attrGroupEntity != null){
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }

        //设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        attrRespVo.setCatelogPath(catelogPath);
        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if (categoryEntity != null){
            attrRespVo.setCatelogName(categoryEntity.getName());
        }
        return attrRespVo;
    }

    @Transactional
    @Override
    public void updateAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr, attrEntity);
        this.updateById(attrEntity);

        if(attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){

            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attr.getAttrId());

            Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().
                    eq("attr_id", attr.getAttrId()));
            if (count>0){
                //修改分组关联
                relationDao.update(relationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().
                        eq("attr_id",attr.getAttrId()));
            }else {
                //新增
                relationDao.insert(relationEntity);
            }
        }



    }

    /*
    * 根据分组id查找关联的所有基本属性
    *
    * */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrGroupId) {
        List<AttrAttrgroupRelationEntity> entites =
                relationDao.selectList(
                        new QueryWrapper<AttrAttrgroupRelationEntity>().
                                eq("attr_group_id", attrGroupId));

        List<Long> collect = entites.stream().map((attr) -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        if(collect==null||collect.size() == 0){
            return null;
        }
        Collection<AttrEntity> attrEntities = this.listByIds(collect);
        return (List<AttrEntity>)attrEntities;
    }

    @Override
    public void deleteRelation(attrGroupRelationVo[] vos) {
        List<AttrAttrgroupRelationEntity> collect = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity entity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, entity);
            return entity;
        }).collect(Collectors.toList());

        relationDao.deleteBatchiRelation(collect);


    }



    /*
     * 获取当前分组没有关联的所有属性
     *
     * */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {

        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //当前分组只能关联别的分组没有引用的属性
        //当前分类下的其他分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(
                new QueryWrapper<AttrGroupEntity>().
                        eq("catelog_id", catelogId));
        List<Long> collect = group.stream().map(item -> item.getAttrGroupId()).collect(Collectors.toList());
//        if (collect.size() > 0){

        List<AttrAttrgroupRelationEntity> attrGroupId = relationDao.selectList
                (new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> attrIds = attrGroupId.stream().map(item -> item.getAttrId()).collect(Collectors.toList());
        //从当前分类的所有属性中移除这些属性
        QueryWrapper<AttrEntity> wrapper =
                new QueryWrapper<AttrEntity>().
                        eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if (attrIds!=null||attrIds.size() > 0){
            wrapper.notIn("attr_id", attrIds);
        }

        String key = (String) params.get("key");
        if (StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);
        PageUtils pageUtils = new PageUtils(page);
        return pageUtils;
//
    }

    @Override
    public List<Long> selectSearchAttrIds(List<Long> attrIds) {

        return baseMapper.selectSearchAttrIds(attrIds);
    }


}